| Constituencies in Bihar | |||
| 1 - Valmiki Nagar | 2 - Paschim Champaran | 3 - Purvi Champaran | |
| 4 - Sheohar | 5 - Sitamarhi | 6 - Madhubani | |
| 7 - Jhanjharpur | 8 - Supaul | 9 - Araria | |
| 10 - Kishanganj | 11 - Katihar | 12 - Purnia | |
| 13 - Madhepura | 14 - Darbhanga | 15 - Muzaffarpur | |
| 16 - Vaishali | 17 - Gopalganj | 18 - Siwan | |
| 19 - Maharajganj | 20 - Saran | 21 - Hajipur | |
| 22 - Ujiarpur | 23 - Samastipur | 24 - Begusarai | |
| 25 - Khagaria | 26 - Bhagalpur | 27 - Banka | |
| 28 - Munger | 29 - Nalanda | 30 - Patna Sahib | |
| 31 - Pataliputra | 32 - Arrah | 33 - Buxar | |
| 34 - Sasaram | 35 - Karakat | 36 - Jahanabad | |
| 37 - Aurangabad | 38 - Gaya | 39 - Nawada | |
| 40 - Bikramganj | |||
| Bihar State Assembly Elections 2005 | |
| Bihar Assembly Constituencies | Candidate List |
| General Elections 2004 | |
| Constituencies in Bihar | Partywise Position in Bihar |
| Details of PCs | |
| Total PCs | 40 |
| PCs for which Elections are being held | 40 |
| PCs for which results are available | 37 |
| Electors and Voters | |
| Total Electors | 50553503 |
| Polling Stations | 49683 |
| Polling %age | 59.03 |
| Number of Candidates | |||||
| National Parties | State Parties | State Parties-Other States | Other Reg. Parties | Independents | Total Contestants |
| 68 | 50 | 68 | 77 | 199 | 462 |
| Party | Constituencies | |
| Contesting | Won | |
| BJP | 16 | 5 |
| BSP | 40 | 0 |
| CPI | 6 | 0 |
| CPM | 1 | 0 |
| INC | 4 | 3 |
| NCP | 1 | 0 |
| JD(U) | 24 | 6 |
| RJD | 26 | 19 |
| CPI(ML)(L) | 21 | 0 |
| JD(S) | 2 | 0 |
| RLD | 6 | 0 |
| SHS | 7 | 0 |
| SP | 32 | 0 |
| ABDBM | 1 | 0 |
| ABHM | 3 | 0 |
| ABJS | 1 | 0 |
| AD | 16 | 0 |
| BED | 1 | 0 |
| BMF | 1 | 0 |
| BPSP | 1 | 0 |
| GGP | 1 | 0 |
| IJP | 4 | 0 |
| JDP | 2 | 0 |
| JHP | 2 | 0 |
| JHSP | 1 | 0 |
| JP | 5 | 0 |
| KSVP | 1 | 0 |
| KVSP | 2 | 0 |
| LJNSP | 8 | 4 |
| LSD | 1 | 0 |
| PTSS | 1 | 0 |
| RLSM | 1 | 0 |
| RSMD | 2 | 0 |
| SAP | 12 | 0 |
| SBSP | 1 | 0 |
| SJP(R) | 3 | 0 |
| SPVD | 3 | 0 |
| SSD | 2 | 0 |
| VJP | 1 | 0 |
| IND | 199 | 0 |
| TOTAL | 462 | 37 |